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Subject Apply評価の謎
Date: 2012/02/29(Wed) 15:52:55
ContributorAkio Morita

以下の二つの式の評価が違うのは納得いかない

In[1]:= And@@{}
???General::narg: Number of arguments is expected 1 or more in And[]
Out[1]:= And[]
In[2]:= And[Null@@{}]
Out[2]:= 1


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